I’m not a Christian, never have been, and don’t know what variety of it you are involved with, so may not be qualified to comment. But I would say rather than replace a simplistic (fundamentalist) religious belief system with an equally simplistic atheism, you might search for a version of religion or spirituality that is compatible with science and doesn’t require counterfactual faith. Someone already mentioned the Friends, and this site may be a good place to start. There are several well-known scientists (Ken Miller, Francis Collins) who manage to reconcile science and Christian belief—I don’t know how that works exactly. You need to figure out why you feel the need to change your belief system, and which parts of it need to get discarded or modified. All I’m saying is that it isn’t all or nothing.
I’m not a Christian, never have been, and don’t know what variety of it you are involved with, so may not be qualified to comment. But I would say rather than replace a simplistic (fundamentalist) religious belief system with an equally simplistic atheism, you might search for a version of religion or spirituality that is compatible with science and doesn’t require counterfactual faith. Someone already mentioned the Friends, and this site may be a good place to start. There are several well-known scientists (Ken Miller, Francis Collins) who manage to reconcile science and Christian belief—I don’t know how that works exactly. You need to figure out why you feel the need to change your belief system, and which parts of it need to get discarded or modified. All I’m saying is that it isn’t all or nothing.